48 lines
768 B
Go
48 lines
768 B
Go
// For more tutorials: https://blog.learngoprogramming.com
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//
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// Copyright © 2018 Inanc Gumus
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// Learn Go Programming Course
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// License: https://creativecommons.org/licenses/by-nc-sa/4.0/
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//
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package main
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import (
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"fmt"
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"os"
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"strconv"
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)
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func main() {
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args := os.Args
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if len(args) != 2 {
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fmt.Println("Give me the size of the table")
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return
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}
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size, err := strconv.Atoi(args[1])
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if err != nil || size <= 0 {
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fmt.Println("Wrong size")
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return
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}
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// print the header
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fmt.Printf("%5s", "X")
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for i := 0; i <= size; i++ {
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fmt.Printf("%5d", i)
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}
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fmt.Println()
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for i := 0; i <= size; i++ {
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// print the vertical header
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fmt.Printf("%5d", i)
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// print the cells
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for j := 0; j <= size; j++ {
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fmt.Printf("%5d", i*j)
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}
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fmt.Println()
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}
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}
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